When is the greatest risk of damage from electrostatic discharge? A. if you touch an unpainted metal surface B. if you unscrew and open a laptop's casing C. when you open the casing of a desktop computer after powering It off
D. when you work with computer parts that are normally encased

D

Explanation: when you are working on a computer internals you usually open it up to work on it. this is the greatest risk for electrostatic discharge to fry compontas when you touch components.

you need to be a high enough rank

answer; i believe the correct answer is (psychological pricing);